True or false: density is a measure of how tightly the mass of an object is packed. it can be calculated using d=m/v.

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Determine the reaction and balance the following equations urgent due in the morning